CN115336157B - Circuit for Switched Capacitor Voltage Converter - Google Patents

Circuit for Switched Capacitor Voltage Converter Download PDF

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CN115336157B
CN115336157B CN202180024623.0A CN202180024623A CN115336157B CN 115336157 B CN115336157 B CN 115336157B CN 202180024623 A CN202180024623 A CN 202180024623A CN 115336157 B CN115336157 B CN 115336157B
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switch
circuit
sub
capacitor
subcircuit
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CN115336157A (en
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汉斯·梅瓦特
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Lion Semiconductor Inc
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0043—Converters switched with a phase shift, i.e. interleaved
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H02M3/072—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate an output voltage whose value is lower than the input voltage

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

一种电路，包括：第一开关，其具有：连接到第一电容器的第二侧(1C2S)的第一侧(FS)；和连接到参考节点(RN)的第二侧(SS)；第二开关，其具有：连接到第二电压节点(2VN)的FS；和连接到1C2S的SS；第三开关，其具有：连接到第一电容器的第一侧(1C1S)的FS；和连接到2VN的SS；第四开关，其具有：连接到第三电压节点(3VN)的FS；和连接到1C1S的SS；第五开关，其具有：连接到第二电容器的第二侧(2C2S)的FS；和连接到RN的SS；第六开关，其具有：连接到3VN的FS；和连接到2C2S的SS；第七开关，其具有：连接到第二电容器的第一侧(2C1S)的FS；和连接到3VN的SS；以及第八开关，其具有：连接到第一电压节点的FS；和连接到2C1S的SS。

A circuit comprising: a first switch having: a first side (FS) connected to a second side (1C2S) of a first capacitor; and a second side (SS) connected to a reference node (RN); Two switches having: FS connected to the second voltage node (2VN); and SS connected to 1C2S; a third switch having: FS connected to the first side of the first capacitor (1C1S); and connected to SS of 2VN; fourth switch with: FS connected to the third voltage node (3VN); and SS connected to 1C1S; fifth switch with: FS connected to the second side of the second capacitor (2C2S) FS; and SS connected to RN; sixth switch with: FS connected to 3VN; and SS connected to 2C2S; seventh switch with: FS connected to the first side of the second capacitor (2C1S) and SS connected to 3VN; and an eighth switch having: FS connected to the first voltage node; and SS connected to 2C1S.

Description

用于开关电容式电压变换器的电路Circuit for Switched Capacitor Voltage Converter

相关申请的交叉引用Cross References to Related Applications

本申请要求于2020年3月27日提交的美国临时专利申请号63/001,154的优先权，其通过引用整体并入本文。This application claims priority to U.S. Provisional Patent Application No. 63/001,154, filed March 27, 2020, which is incorporated herein by reference in its entirety.

背景技术Background technique

开关电容式电压变换器(switched capacitor voltage converter)是用于将一个DC电压电平转换为另一个的方便电路。例如，在一些实施例中，这种电压变换器可被用于为移动设备中的电池充电。因此，对开关电容式电压变换器的需求非常大。A switched capacitor voltage converter is a convenient circuit for converting one DC voltage level to another. For example, in some embodiments, such voltage converters may be used to charge batteries in mobile devices. Therefore, there is a great demand for switched capacitor voltage converters.

因此，需要新的和改进的开关电容式电压变换器。Therefore, new and improved switched capacitor voltage converters are needed.

发明内容Contents of the invention

根据一些实施例，提供了用于开关电容式电压变换器的电路。According to some embodiments, a circuit for a switched capacitor voltage converter is provided.

在一些实施例中，提供了用于开关电容式电压变换器的电路，该电路包括第一子电路，其包括：具有第一侧和第二侧的第一电容器；具有第一侧和第二侧的第四电容器；第一开关，其具有连接到第一电容器的第二侧的第一侧并且具有连接到参考节点的第二侧；第二开关，其具有连接到第二电压节点的第一侧并且具有连接到第一电容器的第二侧的第二侧；第三开关，其具有连接到第一电容器的第一侧的第一侧并且具有连接到第二电压节点的第二侧；第四开关，其具有连接到第三电压节点的第一侧并且具有连接到第一电容器的第一侧的第二侧；第五开关，其具有连接到第四电容器的第二侧的第一侧并且具有连接到参考节点的第二侧；第六开关，其具有连接到第三电压节点的第一侧并且具有连接到第四电容器的第二侧的第二侧；第七开关，其具有连接到第四电容器的第一侧的第一侧并且具有连接到第三电压节点的第二侧；和第八开关，其具有连接到第一电压节点的第一侧并且具有连接到第四电容器的第一侧的第二侧；以及第二子电路，其包括：具有第一侧和第二侧的第二电容器；具有第一侧和第二侧的第三电容器；第一开关，其具有连接到第二电容器的第二侧的第一侧并且具有连接到参考节点的第二侧；第二开关，其具有连接到第二电压节点的第一侧并且具有连接到第二电容器的第二侧的第二侧；第三开关，其具有连接到第二电容器的第一侧的第一侧并且具有连接到第二电压节点的第二侧；第四开关，其具有连接到第三电压节点的第一侧并且具有连接到第二电容器的第一侧的第二侧；第五开关，其具有连接到第三电容器的第二侧的第一侧并且具有连接到参考节点的第二侧；第六开关，其具有连接到第三电压节点的第一侧并且具有连接到第三电容器的第二侧的第二侧；第七开关，其具有连接到第三电容器的第一侧的第一侧并且具有连接到第三电压节点的第二侧；和第八开关，其具有连接到第一电压节点的第一侧并且具有连接到第三电容器的第一侧的第二侧。In some embodiments, a circuit for a switched capacitor voltage converter is provided that includes a first subcircuit including: a first capacitor having a first side and a second side; A fourth capacitor on the side; a first switch having a first side connected to the second side of the first capacitor and having a second side connected to the reference node; a second switch having a first side connected to the second voltage node one side and having a second side connected to the second side of the first capacitor; a third switch having a first side connected to the first side of the first capacitor and having a second side connected to the second voltage node; A fourth switch having a first side connected to the third voltage node and a second side connected to the first side of the first capacitor; a fifth switch having a first side connected to the second side of the fourth capacitor side and has a second side connected to the reference node; a sixth switch has a first side connected to the third voltage node and has a second side connected to the second side of the fourth capacitor; a seventh switch has a first side connected to the first side of the fourth capacitor and having a second side connected to the third voltage node; and an eighth switch having a first side connected to the first voltage node and having a second side connected to the fourth capacitor and a second subcircuit comprising: a second capacitor having a first side and a second side; a third capacitor having a first side and a second side; a first switch having a first side connected to the second side of the second capacitor and having a second side connected to the reference node; a second switch having a first side connected to the second voltage node and having a second side connected to the second capacitor A second side of the side; a third switch having a first side connected to the first side of the second capacitor and having a second side connected to the second voltage node; a fourth switch having a second side connected to the third voltage node and having a second side connected to the first side of the second capacitor; a fifth switch having a first side connected to the second side of the third capacitor and having a second side connected to the reference node; A sixth switch having a first side connected to the third voltage node and a second side connected to the second side of the third capacitor; a seventh switch having a first side connected to the first side of the third capacitor and having a second side connected to the third voltage node; and an eighth switch having a first side connected to the first voltage node and having a second side connected to the first side of the third capacitor.

在这些实施例中的一些实施例中，参考节点接地。In some of these embodiments, the reference node is grounded.

在这些实施例中的一些实施例中，在第一配置期间：第一子电路的第一开关闭合；第一子电路的第二开关断开；第一子电路的第三开关闭合；第一子电路的第四开关断开；第一子电路的第五开关断开；第一子电路的第六开关闭合；第一子电路的第七开关断开；第一子电路的第八开关闭合；第二子电路的第一开关断开；第二子电路的第二开关闭合；第二子电路的第三开关断开；第二子电路的第四开关闭合；第二子电路的第五开关闭合；第二子电路的第六开关断开；第二子电路的第七开关闭合；和第二子电路的第八开关断开。In some of these embodiments, during the first configuration: the first switch of the first subcircuit is closed; the second switch of the first subcircuit is open; the third switch of the first subcircuit is closed; the first The fourth switch of the subcircuit is open; the fifth switch of the first subcircuit is open; the sixth switch of the first subcircuit is closed; the seventh switch of the first subcircuit is open; the eighth switch of the first subcircuit is closed ; The first switch of the second sub-circuit is open; The second switch of the second sub-circuit is closed; The third switch of the second sub-circuit is open; The fourth switch of the second sub-circuit is closed; The switch is closed; the sixth switch of the second subcircuit is open; the seventh switch of the second subcircuit is closed; and the eighth switch of the second subcircuit is open.

在这些实施例中的一些实施例中，在第二配置期间：第一子电路的第一开关闭合；第一子电路的第二开关断开；第一子电路的第三开关闭合；第一子电路的第四开关断开；第一子电路的第五开关断开；第一子电路的第六开关闭合；第一子电路的第七开关断开；第一子电路的第八开关闭合；第二子电路的第一开关断开；第二子电路的第二开关闭合；第二子电路的第三开关断开；第二子电路的第四开关闭合；第二子电路的第五开关闭合；第二子电路的第六开关断开；第二子电路的第七开关闭合；和第二子电路的第八开关断开。In some of these embodiments, during the second configuration: the first switch of the first subcircuit is closed; the second switch of the first subcircuit is open; the third switch of the first subcircuit is closed; the first The fourth switch of the subcircuit is open; the fifth switch of the first subcircuit is open; the sixth switch of the first subcircuit is closed; the seventh switch of the first subcircuit is open; the eighth switch of the first subcircuit is closed ; The first switch of the second sub-circuit is open; The second switch of the second sub-circuit is closed; The third switch of the second sub-circuit is open; The fourth switch of the second sub-circuit is closed; The switch is closed; the sixth switch of the second subcircuit is open; the seventh switch of the second subcircuit is closed; and the eighth switch of the second subcircuit is open.

在这些实施例中的一些实施例中，第一子电路的第一开关、第一子电路的第二开关、第一子电路的第三开关、第一子电路的第四开关、第一子电路的第五开关、第一子电路的第六开关、第一子电路的第七开关、第一子电路的第八开关、第二子电路的第一开关、第二子电路的第二开关、第二子电路的第三开关、第二子电路的第四开关、第二子电路的第五开关、第二子电路的第六开关、第二子电路的第七开关和第二子电路的第八开关由一个或多个MOSFET构成。In some of these embodiments, the first switch of the first subcircuit, the second switch of the first subcircuit, the third switch of the first subcircuit, the fourth switch of the first subcircuit, the first subcircuit The fifth switch of the circuit, the sixth switch of the first subcircuit, the seventh switch of the first subcircuit, the eighth switch of the first subcircuit, the first switch of the second subcircuit, the second switch of the second subcircuit , the third switch of the second subcircuit, the fourth switch of the second subcircuit, the fifth switch of the second subcircuit, the sixth switch of the second subcircuit, the seventh switch of the second subcircuit and the second subcircuit The eighth switch consists of one or more MOSFETs.

在这些实施例中的一些实施例中，第一电压节点接收输入电压并且第二电压节点输出输出电压。In some of these embodiments, the first voltage node receives an input voltage and the second voltage node outputs an output voltage.

在这些实施例中的一些实施例中，第二电压节点接收输入电压并且第一电压节点输出输出电压。In some of these embodiments, the second voltage node receives an input voltage and the first voltage node outputs an output voltage.

在这些实施例中的一些实施例中，电路被用于形成多相电压变换器。In some of these embodiments, circuits are used to form multi-phase voltage converters.

附图说明Description of drawings

图1示出了根据一些实施例的用于开关电容式电压变换器的电路的示例示意图。FIG. 1 shows an example schematic diagram of a circuit for a switched capacitor voltage converter according to some embodiments.

图2示出了根据一些实施例的图1的用于开关电容式电压变换器的电路处于第一配置中的示例示意图。FIG. 2 shows an example schematic diagram of the circuit for a switched capacitor voltage converter of FIG. 1 in a first configuration, according to some embodiments.

图3示出了根据一些实施例的图1的用于开关电容式电压变换器的电路处于第二配置中的示例示意图。3 shows an example schematic diagram of the circuit for a switched capacitor voltage converter of FIG. 1 in a second configuration, according to some embodiments.

具体实施方式Detailed ways

转向图1，示出了根据一些实施例的用于开关电容式电压变换器的电路的示例100。如图所示，电路100包括两个子电路102和104。子电路102和104中的节点V1被连接在一起，子电路102和104中的节点V2被连接在一起，并且子电路102和104中的节点V3被连接在一起。Turning to FIG. 1 , an example 100 of a circuit for a switched capacitor voltage converter is shown in accordance with some embodiments. As shown, circuit 100 includes two sub-circuits 102 and 104 . Nodes V1 in subcircuits 102 and 104 are connected together, nodes V2 in subcircuits 102 and 104 are connected together, and nodes V3 in subcircuits 102 and 104 are connected together.

在一些实施例中，V1是被连接到电压源的输入节点，V2是被连接到负载的输出节点，并且电路100在V2处提供输出电压，其是在V1处的输入电压的四分之一。在其它实施例中，V2是被连接到电压源的输入节点，V1是被连接到负载的输出节点，并且电路100在V1处提供输出电压，其是V2处输入电压的四倍。In some embodiments, V1 is an input node connected to a voltage source, V2 is an output node connected to a load, and circuit 100 provides an output voltage at V2 that is the input voltage at V1 a quarter. In other embodiments, V2 is an input node connected to a voltage source, V1 is an output node connected to a load, and circuit 100 provides an output voltage at V1 that is four times the input voltage at V2 .

电路100包括四个电容器C1、C2、C3和C4，以及十六个开关S1A、S2A、S3A、S4A、S5A、S6A、S7A、S8A、S1B、S2B、S3B、S4B、S5B、S6B、S7B和S8B。Circuit 100 includes four capacitors C 1 , C 2 , C 3 and C 4 , and sixteen switches S 1A , S 2A , S 3A , S 4A , S 5A , S 6A , S 7A , S 8A , S 1B , S 2B , S 3B , S 4B , S 5B , S 6B , S 7B and S 8B .

在一些实施例中，任何合适的电容器都可以被用于电容器C1、C2、C3和C4。例如，在一些实施例中，电容器可以被形成在芯片上或者可以是分立元件。In some embodiments, any suitable capacitor may be used for capacitors C 1 , C 2 , C 3 , and C 4 . For example, in some embodiments capacitors may be formed on-chip or may be discrete components.

在一些实施例中，电容器C1、C2、C3和C4可以具有任何合适的值。例如，在一些实施例中，电容器可以具有1nF和1mF之间的值。In some embodiments, capacitors C 1 , C 2 , C 3 , and C 4 may have any suitable value. For example, in some embodiments, a capacitor may have a value between 1 nF and 1 mF.

任何合适的开关都可以被用于开关S1A、S2A、S3A、S4A、S5A、S6A、S7A、S8A、S1B、S2B、S3B、S4B、S5B、S6B、S7B和S8B。例如，在一些实施例中，开关可以由一个或多个MOSFET形成，其在任何合适电路的控制下由任何合适的驱动器驱动。Any suitable switch can be used for switches S 1A , S 2A , S 3A , S 4A , S 5A , S 6A , S 7A , S 8A , S 1B , S 2B , S 3B , S 4B , S 5B , S 6B , S 7B and S 8B . For example, in some embodiments a switch may be formed from one or more MOSFETs driven by any suitable driver under the control of any suitable circuitry.

在操作期间，电路100的开关可以被断开和闭合以分别在图2和图3所示的电路配置200和300之间切换。During operation, the switches of circuit 100 may be opened and closed to switch between circuit configurations 200 and 300 shown in FIGS. 2 and 3 , respectively.

在操作期间，电路100可以以任何合适的频率在这两种配置之间切换。例如，在一些实施例中，电路可以以1kHz(例如，对于1mF电容器尺寸)和1GHz(例如，对于1nF电容器尺寸)之间的频率在这两种配置之间切换。During operation, circuit 100 may switch between these two configurations at any suitable frequency. For example, in some embodiments, the circuit can switch between the two configurations at a frequency between 1 kHz (eg, for a 1 mF capacitor size) and 1 GHz (eg, for a 1 nF capacitor size).

下表示出了在配置200和300中时开关S1A、S2A、S3A、S4A、S5A、S6A、S7A、S8A、S1B、S2B、S3B、S4B、S5B、S6B、S7B和S8B的设置：The table below shows that in configurations 200 and 300 switches S 1A , S 2A , S 3A , S 4A , S 5A , S 6A , S 7A , S 8A , S 1B , S 2B , S 3B , S 4B , S 5B , S 6B , S 7B and S 8B settings:

开关switch 配置200Configure 200 配置300configure 300 S1A S 1A 闭合closure 断开disconnect S2A S 2A 断开disconnect 闭合closure S3A S 3A 闭合closure 断开disconnect S4A S 4A 断开disconnect 闭合closure S5A S 5A 断开disconnect 闭合closure S6A S 6A 闭合closure 断开disconnect S7A S 7A 断开disconnect 闭合closure S8A S 8A 闭合closure 断开disconnect S1B S 1B 断开disconnect 闭合closure S2B S 2B 闭合closure 断开disconnect S3B S 3B 断开disconnect 闭合closure S4B S 4B 闭合closure 断开disconnect S5B S 5B 闭合closure 断开disconnect S6B S 6B 断开disconnect 闭合closure S7B S 7B 闭合closure 断开disconnect S8B S 8B 断开disconnect 闭合closure

在一些实施例中，电路100可被用于形成多相电压变换器。在这样的实施方式中，可以提供电路100的多个副本并且它们的输入和输出节点被连接在一起(即，所有电路100的V1连接件被连接在一起并且所有电路100的V2连接件被连接在一起)。在一些实施例中，不同电路的开关可以被异相切换，使得不同电路100在不同时间从一种配置切换到另一种配置。In some embodiments, circuit 100 may be used to form a multi-phase voltage converter. In such an embodiment, multiple copies of circuit 100 may be provided and their input and output nodes connected together (i.e., the V1 connections of all circuits 100 are connected together and the V2 connections of all circuits 100 are connected together). In some embodiments, switches of different circuits may be switched out of phase such that different circuits 100 switch from one configuration to another at different times.

尽管已经在前述示例性实施例中描述和示出了本发明，但是应当理解，本公开仅通过示例的方式进行，并且可以对本发明的实施方式的细节进行大量更改而不偏离发明的精神和范围，其仅受以下权利要求的限制。本公开的实施例的特征可以以各种方式被组合和重新排列。While the invention has been described and shown in the foregoing exemplary embodiments, it should be understood that this disclosure has been made by way of example only, and numerous changes may be made in the details of the embodiments of the invention without departing from the spirit and scope of the invention. , which is limited only by the following claims. The features of the disclosed embodiments may be combined and rearranged in various ways.

Claims (8)

1.一种用于开关电容式电压变换器的电路，包括：1. A circuit for a switched capacitor voltage converter, comprising: 第一子电路，其包括：A first subcircuit comprising: 具有第一侧和第二侧的第一电容器；a first capacitor having a first side and a second side; 具有第一侧和第二侧的第四电容器；a fourth capacitor having a first side and a second side; 第一开关，其具有直接连接到所述第一电容器的第二侧的第一侧并且具有连接到参考节点的第二侧；a first switch having a first side directly connected to the second side of the first capacitor and having a second side connected to a reference node; 第二开关，其具有连接到第二电压节点的第一侧并且具有连接到所述第一电容器的第二侧的第二侧；a second switch having a first side connected to a second voltage node and having a second side connected to a second side of the first capacitor; 第三开关，其具有连接到所述第一电容器的第一侧的第一侧并且具有连接到所述第二电压节点的第二侧；a third switch having a first side connected to the first side of the first capacitor and having a second side connected to the second voltage node; 第四开关，其具有连接到第三电压节点的第一侧并且具有直接连接到所述第一电容器的第一侧的第二侧；a fourth switch having a first side connected to a third voltage node and having a second side directly connected to the first side of the first capacitor; 第五开关，其具有直接连接到所述第四电容器的第二侧的第一侧并且具有连接到所述参考节点的第二侧；a fifth switch having a first side directly connected to a second side of the fourth capacitor and having a second side connected to the reference node; 第六开关，其具有连接到所述第三电压节点的第一侧并且具有连接到所述第四电容器的第二侧的第二侧；a sixth switch having a first side connected to the third voltage node and having a second side connected to a second side of the fourth capacitor; 第七开关，其具有连接到所述第四电容器的第一侧的第一侧并且具有连接到所述第三电压节点的第二侧；和a seventh switch having a first side connected to the first side of the fourth capacitor and having a second side connected to the third voltage node; and 第八开关，其具有连接到第一电压节点的第一侧并且具有直接连接到所述第四电容器的第一侧的第二侧；以及an eighth switch having a first side connected to the first voltage node and having a second side directly connected to the first side of the fourth capacitor; and 第二子电路，其包括：a second subcircuit comprising: 具有第一侧和第二侧的第二电容器；a second capacitor having a first side and a second side; 具有第一侧和第二侧的第三电容器；a third capacitor having a first side and a second side; 第一开关，其具有直接连接到所述第二电容器的第二侧的第一侧并且具有连接到所述参考节点的第二侧；a first switch having a first side directly connected to a second side of the second capacitor and having a second side connected to the reference node; 第二开关，其具有连接到所述第二电压节点的第一侧并且具有连接到所述第二电容器的第二侧的第二侧；a second switch having a first side connected to the second voltage node and having a second side connected to a second side of the second capacitor; 第三开关，其具有连接到所述第二电容器的第一侧的第一侧并且具有连接到所述第二电压节点的第二侧；a third switch having a first side connected to the first side of the second capacitor and having a second side connected to the second voltage node; 第四开关，其具有连接到所述第三电压节点的第一侧并且具有直接连接到所述第二电容器的第一侧的第二侧；a fourth switch having a first side connected to the third voltage node and having a second side directly connected to the first side of the second capacitor; 第五开关，其具有直接连接到所述第三电容器的第二侧的第一侧并且具有连接到所述参考节点的第二侧；a fifth switch having a first side directly connected to a second side of the third capacitor and having a second side connected to the reference node; 第六开关，其具有连接到所述第三电压节点的第一侧并且具有连接到所述第三电容器的第二侧的第二侧；a sixth switch having a first side connected to the third voltage node and having a second side connected to a second side of the third capacitor; 第七开关，其具有连接到所述第三电容器的第一侧的第一侧并且具有连接到所述第三电压节点的第二侧；和a seventh switch having a first side connected to the first side of the third capacitor and having a second side connected to the third voltage node; and 第八开关，其具有连接到第一电压节点的第一侧并且具有直接连接到所述第三电容器的第一侧的第二侧。An eighth switch having a first side connected to the first voltage node and having a second side directly connected to the first side of the third capacitor. 2.根据权利要求1所述的电路，其中，所述参考节点接地。2. The circuit of claim 1, wherein the reference node is grounded. 3.根据权利要求1所述的电路，其中，在第一配置期间：3. The circuit of claim 1, wherein, during the first configuration: 所述第一子电路的第一开关闭合；the first switch of the first sub-circuit is closed; 所述第一子电路的第二开关断开；the second switch of the first sub-circuit is turned off; 所述第一子电路的第三开关闭合；The third switch of the first sub-circuit is closed; 所述第一子电路的第四开关断开；The fourth switch of the first sub-circuit is turned off; 所述第一子电路的第五开关断开；The fifth switch of the first sub-circuit is turned off; 所述第一子电路的第六开关闭合；The sixth switch of the first sub-circuit is closed; 所述第一子电路的第七开关断开；The seventh switch of the first sub-circuit is turned off; 所述第一子电路的第八开关闭合；The eighth switch of the first sub-circuit is closed; 所述第二子电路的第一开关断开；The first switch of the second sub-circuit is turned off; 所述第二子电路的第二开关闭合；a second switch of the second sub-circuit is closed; 所述第二子电路的第三开关断开；The third switch of the second sub-circuit is turned off; 所述第二子电路的第四开关闭合；The fourth switch of the second sub-circuit is closed; 所述第二子电路的第五开关闭合；The fifth switch of the second sub-circuit is closed; 所述第二子电路的第六开关断开；The sixth switch of the second sub-circuit is turned off; 所述第二子电路的第七开关闭合；和a seventh switch of the second sub-circuit is closed; and 所述第二子电路的第八开关断开。The eighth switch of the second sub-circuit is turned off. 4.根据权利要求1所述的电路，其中，在第二配置期间：所述第一子电路的第一开关断开；4. The circuit of claim 1, wherein during the second configuration: the first switch of the first sub-circuit is open; 所述第一子电路的第二开关闭合；the second switch of the first sub-circuit is closed; 所述第一子电路的第三开关断开；The third switch of the first sub-circuit is turned off; 所述第一子电路的第四开关闭合；The fourth switch of the first sub-circuit is closed; 所述第一子电路的第五开关闭合；The fifth switch of the first sub-circuit is closed; 所述第一子电路的第六开关断开；The sixth switch of the first sub-circuit is turned off; 所述第一子电路的第七开关闭合；The seventh switch of the first sub-circuit is closed; 所述第一子电路的第八开关断开；The eighth switch of the first subcircuit is turned off; 所述第二子电路的第一开关闭合；the first switch of the second sub-circuit is closed; 所述第二子电路的第二开关断开；The second switch of the second sub-circuit is turned off; 所述第二子电路的第三开关闭合；The third switch of the second sub-circuit is closed; 所述第二子电路的第四开关断开；The fourth switch of the second sub-circuit is turned off; 所述第二子电路的第五开关断开；The fifth switch of the second sub-circuit is turned off; 所述第二子电路的第六开关闭合；The sixth switch of the second sub-circuit is closed; 所述第二子电路的第七开关断开；和the seventh switch of the second sub-circuit is open; and 所述第二子电路的第八开关闭合。The eighth switch of the second sub-circuit is closed. 5.根据权利要求1所述的电路，其中，所述第一子电路的第一开关、所述第一子电路的第二开关、所述第一子电路的第三开关、所述第一子电路的第四开关、所述第一子电路的第五开关、所述第一子电路的第六开关、所述第一子电路的第七开关、所述第一子电路的第八开关、所述第二子电路的第一开关、所述第二子电路的第二开关、所述第二子电路的第三开关、所述第二子电路的第四开关、所述第二子电路的第五开关、所述第二子电路的第六开关、所述第二子电路的第七开关、所述第二子电路的第八开关由一个或多个MOSFET形成。5. The circuit of claim 1, wherein the first switch of the first subcircuit, the second switch of the first subcircuit, the third switch of the first subcircuit, the first The fourth switch of the subcircuit, the fifth switch of the first subcircuit, the sixth switch of the first subcircuit, the seventh switch of the first subcircuit, the eighth switch of the first subcircuit , the first switch of the second subcircuit, the second switch of the second subcircuit, the third switch of the second subcircuit, the fourth switch of the second subcircuit, the second subcircuit The fifth switch of the circuit, the sixth switch of the second sub-circuit, the seventh switch of the second sub-circuit, and the eighth switch of the second sub-circuit are formed by one or more MOSFETs. 6.根据权利要求1所述的电路，其中，所述第一电压节点接收输入电压并且所述第二电压节点输出输出电压。6. The circuit of claim 1, wherein the first voltage node receives an input voltage and the second voltage node outputs an output voltage. 7.根据权利要求1所述的电路，其中，所述第二电压节点接收输入电压并且所述第一电压节点输出输出电压。7. The circuit of claim 1, wherein the second voltage node receives an input voltage and the first voltage node outputs an output voltage. 8.根据权利要求1所述的电路，其中，所述电路被用于形成多相电压变换器。8. The circuit of claim 1, wherein the circuit is used to form a multi-phase voltage converter.
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